While the legal status of stolen or confiscated works is as yet unclear, there is hope for those who make claims for restitution

The Jewish dealer’s relatives say participating museums are not dealing satisfactorily with their claims

Rise in restitution claims expected after launch of online German auction catalogues for 1930-45

Montreal museum returns painting amid growing calls to fund provenance research and return disputed works

Identifying forgeries being sold on websites is not enough to tackle the problem

Despite a lavish, 300-page book and a high-profile presentation, strong doubts remain

Investigators sit neatly on the fence

Works include Picasso and Van Gogh, but many are yet to be authenticated

Experts have been silenced by fears of legal action if doubts regarding the sculptures' legitimacy are voiced

Possible self-portrait needs urgent treatment for mould and bacteria

Where next after Leo-mania?

The gallery is being sued over an alleged fake Pollock, sold for $17m in 2007

A new exhibition includes the newly discovered painting, ratifying it as the genuine article

As the appreciation of street art rises (as do its prices), attribution becomes critical

Proof of changes to the composition increases scholarly support

A conference in Catalonia will hopefully solve the ongoing problem with fake multiples in the market

Jeanne Marchig misses out

Simon C. Dickinson Ltd is now the owner of Madonna and Child with St Anne and a Lamb, having reimbursed Nasser Kazeminy for the $7m he paid. If authentic, the gallery stands to make a profit, but if not then its value as an anonymous drawing is modest. So where did the drawing come from—and is it the real thing?

Although the plaster's provenance and the project's credibility are under scrutiny, a New York dealer has initiated an exhibition at the Museum of Art

The painting that still languishes in a vault, despite nearly a century of squabbling

The project, led by Dr Vanessa-Maria Voigt and Dr Horst Kessler, came about by a chance find in a desk...

The painting was stolen from its Jewish owner during the Nazi occupation of France

Since the late 1990s there has been a strong push towards provenance research of collections and museums, and restitution of items that were looted or taken by the Nazis during their period of power

Strives to break restitution “logjam”

Strives to break restitution “logjam”

1 million objects will be examined and recorded over 10 years

Auction house seeks dismissal of lawsuit

Old masters, recovered as a result of one of the world’s largest Nazi restitution claims, net $20m

A source close to the Andy Warhol Authentication Board hints at a change of heart